This is the Original Stock Image Boot and Recovery of Zenfone 3 NOUGAT
Zenfone 3 5.2 (ZE520KL) - "Z017D_WW_14.2015.1701.8"
Google Drive Link: goo.gl/N8QOvS
Zenfone 3 5.5 (ZE552KL) - "Z012D_WW_14.2015.1701.8"
Google Drive Link: goo.gl/hoh38Q
Zenfone 3 5.2 (ZE520KL) - "Z017D_WW_14.2015.1701.8"
Google Drive Link: goo.gl/N8QOvS
Zenfone 3 5.5 (ZE552KL) - "Z012D_WW_14.2015.1701.8"
Google Drive Link: goo.gl/hoh38Q